3.18.3.Mechanical method of demolition: Demolition by smashing walls or floors with a swinging weight, mechanical shovel, or other similar equipment shall be carried out according to the following provisions:
(a) the section which is to be mechanically demolished shall not be higher than 25 m from the ground;
(b) whenever the equipment is in operation, access to the section to be demolished is prohibited to all workers, except the operators of that equipment;
(c) if the public has access to the part to be demolished, a protective wall shall be placed around the building at a distance at least equal to 1.5 times the height of the part to be demolished or, if the public does not have access thereto, a demolition zone shall be marked off around the building by hazard signs placed at a distance equivalent to that prescribed for the protective wall;
(d) it shall be possible to manipulate the controls of the equipment used in such method of demolition at a safe distance from the points of impact; and
(e) where a swinging weight is used, the supporting cables shall be of such a length that it is not possible for the weight to swing against any structure other than the structure being demolished.
R.R.Q., 1981, c. S-2.1, r. 6, s. 3.18.3; O.C. 1959-86, s. 26; O.C. 329-94, s. 69; O.C. 1413-98, s. 25.